package com.car.loan.framework.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import com.car.loan.framework.security.filter.JwtAuthenticationTokenFilter;
import com.car.loan.framework.security.handle.AuthenticationEntryPointImpl;
import com.car.loan.framework.security.handle.LogoutSuccessHandlerImpl;

/**
 * spring security配置
 *
 * @author ruoyi
 */
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    /**
     * 自定义用户认证逻辑
     */
    @Autowired
    private UserDetailsService userDetailsService;

    /**
     * 认证失败处理类
     */
    @Autowired
    private AuthenticationEntryPointImpl unauthorizedHandler;

    /**
     * 退出处理类
     */
    @Autowired
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /**
     * token认证过滤器
     */
    @Autowired
    private JwtAuthenticationTokenFilter authenticationTokenFilter;

    /**
     * 解决 无法直接注入 AuthenticationManager
     */
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    /**
     * anyRequest          |   匹配所有请求路径 access              |   SpringEl表达式结果为true时可以访问 anonymous |
     * 匿名可以访问 denyAll             |   用户不能访问 fullyAuthenticated  | 用户完全认证可以访问（非remember-me下自动登录）
     * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问 hasAnyRole |   如果有参数，参数表示角色，则其中任何一个角色可以访问
     * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问 hasIpAddress        |
     * 如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问 hasRole             | 如果有参数，参数表示角色，则其角色可以访问 permitAll |
     * 用户可以任意访问 rememberMe          | 允许通过remember-me登录的用户访问 authenticated       | 用户登录后可访问
     */
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity
            // CRSF禁用，因为不使用session
            .csrf().disable()
            // 认证失败处理类
            .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
            // 基于token，所以不需要session
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
            // 过滤请求
            .authorizeRequests()
            // 对于登录login 验证码captchaImage 允许匿名访问
            .antMatchers(HttpMethod.OPTIONS, "/**/*").anonymous()
            .antMatchers("/login", "/captchaImage", "/tool/app/version/**","/common/downloadPdf").anonymous()
            .antMatchers(
                HttpMethod.GET,
                "/*.html",
                "/**/*.html",
                "/**/*.css",
                "/**/*.js",
                "/**/*.json"
            ).permitAll()
            .antMatchers("/doc.html").anonymous()
            .antMatchers("/webjars/**").anonymous()
            .antMatchers("/profile/**").anonymous()
            .antMatchers("/swagger-ui.html").anonymous()
            .antMatchers("/swagger-resources/**").anonymous()
            .antMatchers("/webjars/**").anonymous()
            .antMatchers("/*/api-docs").anonymous()
            .antMatchers("/druid/**").anonymous()
            // 除上面外的所有请求全部需要鉴权认证
            .anyRequest().authenticated()
            .and()
            .headers().frameOptions().disable();
        httpSecurity.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
        // 添加JWT filter
        httpSecurity
            .addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
    }


    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    /**
     * 身份认证接口
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }
}
